A new flatwing from the Culton bench: the Rock Island

Depending on your cultural exposure, Rock Island Line is a blues, country, or skiffle song. I won’t go into the details of the story, but there’s a railroad and a train involved. It takes place ‘way down south, miles away from the Metro North line, but that’s the route I take when business calls in the City. That train parallels the shoreline, and it goes over plenty of marshy, salty estuaries — you know, the kind stripers like to hang out in. If you’re a bass angler, you can’t help but notice them, especially that rocky island right next to the channel that’s just got to be holding some decent size fish.

The Rock Island is a flatwing bucktail hybrid about 8″ long. Like a lot of the flies I make up, the tying process wandered around a bit before the pattern discovered where it wanted to be. For example, I started with black thread, then switched to purple. Then changed some of the bucktail color blends. I really like the contrast in this fly from bottom to top.

The Rock Island will get fished on a greased line swing on a cool May night when the herring are in. A’board!

8 comments on “A new flatwing from the Culton bench: the Rock Island”

Question for you. Why use a floating line
for a greased swing especially in a fast
moving river environment. Won’t the fly
ride exceptionally high? I lack
the experience in this method and was just wondering.

I’m glad you asked. By its very name and nature, a greased line swing requires a floating line.

“Greased line” is an old Atlantic salmon technique. It comes from the days of yore when anglers did not have the benefit of SuperDuperHiFloatAirCell line technology. They literally had to grease their lines to keep them afloat.

A greased line swing is executed by an angler standing at a fixed point. Let’s say that angler is casting straight across to the opposite bank. After the cast, the anger begins a series of upstream mends. This keeps the fly broadside, in full profile, to the fish as the fly moves downstream and across. At a certain point in the drift, the angler then comes tight to the line and lets the fly swing directly down below.

Without mending, the fly will make a classic wet fly swing, and will start to turn from full side profile to tail-view much earlier in the drift. That’s not necessarily bad, but with a greased line swing, the striper gets to see more of the fly for a longer period of time. The fly appears to be swimming across the river, dangerously exposed to any bass ready to ambush it. It’s a wonderful way to fish flatwings, which shine as presentation flies.

Why a floating line, then? You cannot mend a sinking line. No mending, no greased line swing.

When I fish these big herring patterns at night, a typical scenario has the bass feeding right near the surface. You can hear the telltale POP! and the splashing of worried bait. All I’m doing is putting the fly where the fish are most likely to take it.

Now, don’t be mislead by the words “floating line.” A floating line is a great way to present flies deep, in current (what kind of line do nymph fisherman use to get their flies to the bottom of a river?). But, that’s another whole subject.

I’m doing a piece on the greased line swing for Fly Fishing in Salt Waters. I’ll let everyone know when that’s coming out.

Very well tied and elegant. Being so far from the ocean, I’ve never fished salt water but I suspect that thing will catch any predatory fish you swim it by. I can hardly wait to see the results of your field testing. Good job on the post.